An elevator is initially moving upward at a speed of 13.08 m/s. The elevator experiences a...
An elevator is initially moving upward at a speed of 13.08 m/s. The elevator experiences a constant downward acceleration of magnitude 4.16 m/s2 for 2.79 s.
(a) Find the magnitude and direction of the elevator's final velocity.
| magnitude | |
| direction | ---Select--- upward downward none |
(b) How far did it move during the 2.79 s interval?
Homework Answers
Add Answer to:
An elevator is initially moving upward at a speed of 13.08 m/s.
The elevator experiences a...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a constant downward acceleration of magnitude 3.92 m/s2 for 2.97 s (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction !--Select--# (b) How far did it move during the 2.97 s interval?
An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator...
An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? 2.0 m/s2, downward 2.0 m/s2, upward 5.3 m/s2, downward 5.3 m/s?, upward
(a) An elevator of mass m moving upward has two forces acting on it: the upward...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? Tw Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? Tw Both forces are equal. (c) When the elevator is moving upward, but the acceleration is downward, which is...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the d...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? T w Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? T w Both forces are equal. (c) When the elevator is moving upward, but the acceleration...
An elevator is moving upward with a velocity of 15 m/s. Three seconds later, the elevator...
An elevator is moving upward with a velocity of 15 m/s. Three seconds later, the elevator is still moving upward, but its velocity has been reduced to 6.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? After 3.0 s, If it maintains the same acceleration, what is the displacement of the elevator after 5 second time interval ? What will be the velocity after the 5 second ? Hint: Keep in mind that the...
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens....
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 73 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.20 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
A paratrooper is initially falling downward at a speed of 29.1 m/s before her parachute opens....
A paratrooper is initially falling downward at a speed of 29.1 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 67 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.50 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
on a (a) The elevator accelerates upward from rest at a rate of 1.25 m/s? for...
on a (a) The elevator accelerates upward from rest at a rate of 1.25 m/s? for 1.50 s. What does the scale read during this 1.50s interval? (b) The elevator continues upward at constant velocity for 8.50 s, what does the scale read nos? (c) While still moving upward, the elevator's speed decreases at a rate of 0.700 m/s? for 3.00 s. What is the scale reading during this time? Tutorial In an exciting game, a baseball player manages to...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
QUESTION 9 A model car initially at rest experiences a constant acceleration, reaching a speed of...
QUESTION 9 A model car initially at rest experiences a constant acceleration, reaching a speed of 8.50 m/s in a time of 4 s. What distance did the car move in this time, in units of meters? QUESTION 10 A satellite is moving around the Earth in a circular orbit with an angular speed of 4.7x10-4 rad/s. The angular speed is then increased at a constant angular acceleration to 5.3x104 rad/s. If this change in angular speed happened while the...
An elevator is initially moving upward at a speed of 12.60 m/s. The elevator experiences a constant downward acceleration of magnitude 3.92 m/s2 for 2.97 s (a) Find the magnitude and direction of the elevator's final velocity. magnitude direction !--Select--# (b) How far did it move during the 2.97 s interval?
An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? 2.0 m/s2, downward 2.0 m/s2, upward 5.3 m/s2, downward 5.3 m/s?, upward
An elevator is moving upward with a velocity of 15 m/s. Three seconds later, the elevator is still moving upward, but its velocity has been reduced to 6.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? After 3.0 s, If it maintains the same acceleration, what is the displacement of the elevator after 5 second time interval ? What will be the velocity after the 5 second ? Hint: Keep in mind that the...
A paratrooper is initially falling downward at a speed of 27.9 m/s before her parachute opens. When it opens, she experiences an upward instantaneous acceleration of 73 m/s2. (a) If this acceleration remained constant, how much time would be required to reduce the paratrooper's speed to a safe 5.20 m/s? (Actually the acceleration is not constant in this case, but the equations of constant acceleration provide an easy estimate.) (b) How far does the paratrooper fall during this time interval?
on a (a) The elevator accelerates upward from rest at a rate of 1.25 m/s? for 1.50 s. What does the scale read during this 1.50s interval? (b) The elevator continues upward at constant velocity for 8.50 s, what does the scale read nos? (c) While still moving upward, the elevator's speed decreases at a rate of 0.700 m/s? for 3.00 s. What is the scale reading during this time? Tutorial In an exciting game, a baseball player manages to...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
QUESTION 9 A model car initially at rest experiences a constant acceleration, reaching a speed of 8.50 m/s in a time of 4 s. What distance did the car move in this time, in units of meters? QUESTION 10 A satellite is moving around the Earth in a circular orbit with an angular speed of 4.7x10-4 rad/s. The angular speed is then increased at a constant angular acceleration to 5.3x104 rad/s. If this change in angular speed happened while the...
Most questions answered within 3 hours.
-
In JAVA please (need answers in a few hours!)
Exercise #2: Design and implement a program...
asked 2 hours ago -
The mass spectrum of an organic compound shows the relative
abundances of M to be 53.76%...
asked 3 hours ago -
Coca Cola’s strategy of “think local, act local” represents a
__________ approach.
Question options:
1)
transnational...
asked 3 hours ago -
which of the following is not a category of project management
risk?
a) external
b) internal...
asked 4 hours ago -
Focus on Critical Thinking: Are citizen suit provisions an
effective way to achieve environmental objectives? Do...
asked 4 hours ago -
Gaseous butane CH3CH22CH3 will react with gaseous oxygen O2 to
produce gaseous carbon dioxide CO2 and...
asked 5 hours ago -
Required to construct counters using synchronous sequential
logic. Use one hex digit to display the result....
asked 5 hours ago -
(Ultra) Large-Scale Systems –Characteristics?
explain in detail
How the nature of an enterprise affect complex...
asked 5 hours ago -
Some of the antibiotic susceptible strains show colonies within
the clear zone. What it does this...
asked 6 hours ago -
In the lottery game Fantasy 5 you have to select 5 numbers from
the numbers {1,2,3,.......,38,39}....
asked 6 hours ago -
A call option on Jupiter Motors stock with an exercise price of
$80 and one-year expiration...
asked 5 hours ago -
What is the disadvantage of an automated vulnerability scan tool
like Nessus?
prone to false negatives...
asked 5 hours ago